Singh, S. (2012). Beginning Google Sketchup for 3D Printing. Apress.
Trích dẫn kiểu ChicagoSingh, Sandeep. Beginning Google Sketchup for 3D Printing. Apress, 2012.
Deismireacht MLASingh, Sandeep. Beginning Google Sketchup for 3D Printing. Apress, 2012.
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